Peugeot Boxer vs Fiat Ducato vs Citroen Relay

Peugeot Boxer vs Fiat Ducato vs Citroen Relay

Deciding between the Peugeot Boxer, Fiat Ducato, and Citroen Relay? Explore our in-depth comparison of these popular large vans. Discover subtle yet significant differences to help you choose the perfect vehicle for your business needs.

James Hartley 11 min read 0

Deciding between the Peugeot Boxer, Fiat Ducato, and Citroen Relay? Explore our in-depth comparison of these popular large vans. Discover subtle yet significant differences to help you choose the perfect vehicle for your business needs.

The Van That Comes in Three Flavours

Stand outside any busy trade counter in Britain and you will see one within about four minutes. Probably white. Probably dirty. Probably carrying something that was never going to fit neatly into anything smaller.

The Peugeot Boxer, Citroen Relay, and Fiat Ducato dominate the large van segment for one straightforward reason, they work. They come from the same factory in Atessa, southern Italy, rolled out of the Sevel joint venture that Fiat and PSA have been running since 1981. Since Stellantis formed in 2021, the Vauxhall Movano joined the family too. Four badges. One van, more or less.

None of that is a secret. What gets less attention is where the differences are meaningful enough to actually shift your buying decision. And they do exist, just not always where the brochures suggest.

You can browse vans for sale across our network of UK dealers to see current stock on all three.


What the Cab Actually Feels Like

The plastics are hard. Not unpleasant, just hard. The kind that takes a knock from a thermos flask and shows nothing for it. Useful, in other words, if not exactly tactile.

The seat fabric on a base trim example feels like it was sourced from the same supplier as budget hotel corridor carpet. It cleans easily though, and after you have watched a driver get in and out of a van 90 times in a working day with plaster dust on his trousers, easy-clean fabric starts to feel like a genuine design priority. The steering wheel is chunky. The handbrake requires a slightly awkward reach. The door shuts with a solid, unshowy clunk, the kind of sound that communicates durability rather than quality, which is probably the right message for a working van.

Sit in a Boxer. Now get into a Relay. Functionally identical. Same dashboard, same physical buttons for the climate controls, same layout. The 2024 facelift tidied the centre console and cleaned up the dashboard face but kept the physical controls, which deserves more credit than it gets in an era where manufacturers are burying everything in touchscreens. Higher spec Ducatos get a 10 inch infotainment screen. Whether you need one in a van is a separate question entirely.

The Ducato's cabin has marginally different trim panels (a slightly different instrument cluster, a different grille on the dashboard face) but you would need a day in each to pick it out. What strikes you immediately on all three is the driving position. High, upright, squared forward. Some drivers love it for the visibility over traffic. Others report lower back grief after four hours. The A pillar creates a meaningful blind spot at junctions on all three variants. Worth experiencing before you commit to driving one daily.

There is also a prestige consideration nobody mentions in van reviews. The Fiat badge carries a certain old-world commercial vehicle credibility in the UK. Older fleet managers who remember Ducatos from the 1990s onward tend to have an affectionate relationship with it. The Relay is the workmanlike choice, the van a sole trader buys when he wants the job done without fuss and is not particularly interested in what it says about him. The Boxer sits somewhere between them, carrying a vague whiff of Peugeot's car range pretensions, which is not necessarily a bad thing if your clients see the van parked outside.

The Noise

At idle on a cold morning, the 2.2 litre diesel makes no attempt to be anything other than what it is. There is a low, slightly agricultural thrum that settles into the background once you are moving. Around 50 miles per hour on a motorway, wind noise from the door seals on an L3 panel van starts making itself felt. Not intrusive. Just present. The manual gearbox has a throw that feels long and deliberate, considered rather than slick. Nobody is rowing through the gears enthusiastically in a large panel van and nobody should be.


Engines: The Gap Has Closed

Danny who runs a workshop just off the Fosse Way near Moreton-in-Marsh made a useful observation a while back. He used to keep a separate mental folder for Ducatos versus Boxers because the engines behaved differently, wore differently, needed different attention. He does not bother any more. The folder is the same.

Fiat has moved to the same Stellantis group 2.2 litre diesel used across all four platform badges. Fiat call it the Multijet 3. Peugeot call it the BlueHDi. Fiat officially quote 2,184cc while Peugeot quote 2,179cc. Five cubic centimetres. Forget it.

Two power outputs on current models. 140hp handles most trade applications without drama. 180hp is automatic only on the Ducato and earns its place on heavy payload work or regular long distance running. The 140hp version has enough pull that you will not notice its absence on a dual carriageway with a full load.

The Emissions Split

The Boxer and Relay use AdBlue injection to meet Euro 6. The Ducato historically leaned on its EGR system more heavily, though current models use both approaches. EGR valves on older Ducatos from the mid to late 2010s are a documented weakness. They coke up, restrict airflow, trigger warning lights. Danny sees two or three a month from operators who have ignored the early signs. A clean costs £150 to £300 at a decent independent and takes an afternoon. On the Boxer side, AdBlue injector faults appear occasionally on early Euro 6 examples. Neither issue is catastrophic. Both are avoidable with decent maintenance habits.


The Automatic Gearbox

The previous Comfortmatic box on older Ducatos was a robotised manual that made town driving a mild ordeal, jerky, hesitant, and prone to clutch control module failures that left drivers stranded. Operators who ran mixed fleets during that era have not forgotten it.

The 9-speed automatic that replaced it is a different animal. A proper torque converter unit. Spent an afternoon in a 140hp Ducato auto around Birmingham city centre, ring road, back streets, loading bays, traffic lights every 90 seconds through Digbeth and along the Pershore Road. The box barely acknowledged any of it. No hunting between gears. No clunk pulling away. No drama whatsoever. For a driver doing that route five days a week, the reduction in fatigue is real.

It is not without caveats. Early 9-speed units on the 160hp and 180hp variants had software issues causing overheating and loss of drive. Some owners required a full gearbox replacement under warranty. Current production models should have that resolved, but if you are looking at a used Ducato auto from 2022 or early 2023 with the higher powered engine, ask specifically whether the recall software update was applied. No confirmation, no purchase.

The Boxer and Relay offer an automatic option. It does the job. Put them back to back on the same route and you feel the difference. The French unit is adequate. The Fiat unit is better than adequate. For urban courier work or any driver racking up 100 drops a day, that gap matters more than it sounds on paper. The fuel penalty is around 3 to 4mpg against the manual, weigh that against what a clutch and dual mass flywheel costs when a driver slips it all day through town.


Load Space

Gary at the Fiat Professional centre in Coventry makes the same point to every fleet buyer who walks in unsure between a Ducato and a Transit. He walks them to an L3 panel van, pulls the rear doors open, and asks them to stand inside. Most of them stop talking about Ford within about 30 seconds.

The interior is 1,870mm wide. Between the wheel arches, 1,422mm. A standard Euro pallet is 1,200mm wide. It fits sideways with clearance on either side. Tested it at a logistics yard near Daventry, two pallets loaded straight off a dock leveller into an L3, no angling required. A Transit with an equivalent body length cannot manage that loading pattern. For businesses that live and die by pallet efficiency, this single dimension changes the economics of every run.

Body sizes across the range:

  • L2 medium wheelbase: 3.1m load floor, 13 cubic metres, the most popular choice for UK trades, fits most loading bays without grief

  • L1 short wheelbase is around 2.6m, useful for urban work where access is the priority

  • L3 long wheelbase: 3.7m, takes 4m lengths diagonally without drama

  • L4 extra long at over 4m of floor and up to 17 cubic metres, often used as a Luton conversion base

  • Chassis cab versions available across all lengths, where the conversion and specialist body market lives

One thing that never gets mentioned: body dimensions are identical across all three badges. A racking system built for a Ducato bolts into a Boxer without modification. Fitting shops know this. It is why second hand conversions on this platform hold value better than you might expect.


What Goes Wrong

The bodywork is the honest weakness on all three. These panels are not Transit tough. They dent more easily, hinge pins sag on high mileage examples, and the sliding door rail fills with grit. By year three on a hard working van the side door starts to stiffen, not because anything has broken, just because nobody has cleaned the rail in 18 months. Not expensive to fix. Annoying if it has not been sorted before you buy. Check any used example by grabbing the handle and giving it a proper pull. If it needs significant effort rather than a light push, the rollers want attention.

Fuel injectors on pre-facelift engines and the AdBlue system on early Euro 6 Boxers have caused some operators grief. Not widespread. Not chronic. But recurring enough that a full service history matters on any used purchase. Look for patterns in the stamps, not just the presence of them.

Parts availability is one of the few areas where these vans are genuinely outstanding. Any independent mechanic in any British town knows this platform. You will not be ringing around for a specialist or waiting three weeks for a part to arrive from the continent.


Boxer vs Relay

Mechanically identical. No argument to be had there.

Pick the one with the better local dealer and the sharper price on the day. The Citroen Enterprise trim regularly comes with more room to negotiate than the equivalent Peugeot spec. If the franchise near you is willing to move on the number and the Peugeot one is not, buy the Relay. You will not notice the difference on the road.

Peugeot does offer a few configuration advantages, bonded glass in the side door, the no bulkhead option that conversion builders value, and a slightly better showing on certain fleet finance deals historically. The Boxer also carries a marginally more polished image than the Relay in some buyers' minds. Whether that matters to your business depends entirely on what your clients see when the van pulls up outside.

On a comparable basis the Boxer and Relay cost around £10,000 less than a Ford Transit and roughly £16,000 less than a Mercedes-Benz Sprinter. For a business buying five vans, that is a meaningful number.

For current Ducato specifications and configuration options, the Fiat Professional UK vehicle configurator is worth spending ten minutes on before approaching any dealer.


Quick Verdict

Buy the Citroen Relay if price and payload are the only metrics that matter. The Enterprise trim is a proper workhorse and the brand does not burden it with pretensions it cannot meet. Operators who have run them for 15 years tend to be relaxed about running them for another 15. That means something.

Buy the Peugeot Boxer if the configuration options matter to your use case (particularly the no bulkhead setup for conversion work) or if the Peugeot dealer in your area is simply better than the Citroen one. The 100,000 mile warranty on new examples is a reasonable safety net.

Buy the Fiat Ducato if your operation is urban, your drivers are doing stop-start work all day, and you want the automatic gearbox. Also the right choice if you are doing genuinely high mileage routes and want the 120 litre fuel tank option. It costs more. For stop-start city work specifically, it pays that back.


Electric

The 2024 facelift brought a 110kWh battery and 150kW maximum DC charging rate to the electric versions across all three badges. Earlier variants with the 47kWh battery look very different in comparison, the range anxiety that made fleet managers dismiss early electric large vans is a much smaller problem with the updated powertrain. Rapid charging to 80 percent takes around 55 minutes at a fast enough public charger.

The e-Boxer carries a premium of around £17,000 over the equivalent diesel but qualifies for the plug-in van grant. For operators dealing with Clean Air Zone charges in London, Bristol, or Birmingham, the numbers are starting to look credible. All three electric variants share identical drivetrains. Badge choice on the electric versions comes down entirely to your dealer relationship. Nothing else is meaningfully different.

Frequently Asked Questions

While all three vans share the same chassis and body produced at the Sevel plant, the primary differences lie in the engines and manufacturer warranties. Historically, the Fiat Ducato used its own Multijet engines while the Peugeot and Citroen utilised PSA BlueHDi units, though modern Stellantis integration has aligned these more closely.

Yes, they are essentially the same vehicle developed through a joint venture between Fiat and PSA (now Stellantis). They share the same structural design, dimensions, and load area, with only minor aesthetic differences like badges, grilles, and specific trim levels distinguishing them.

Reliability is very similar across all three models due to their shared mechanical architecture and heavy-duty interiors designed for trade use. Many fleet operators prefer the Fiat Ducato for its long-standing reputation in the motorhome industry, while others choose the Peugeot or Citroen based on the quality of their local UK dealer's service department.

The vast majority of body panels, interior components, and suspension parts are identical and fully interchangeable between the two models. This makes sourcing affordable spare parts easier for UK owners, as components from a scrapped Boxer will typically fit a Relay of the same generation perfectly.

The Fiat Ducato is the industry standard for motorhome conversions because its rear track is often wider and its engine configurations historically catered better to the motorhome market. However, because the Peugeot Boxer and Citroen Relay share the same 'square' load dimensions, they are equally practical for DIY campervan builds.

Depending on the specific wheelbase (L1 to L4) and roof height (H1 to H3), these vans typically offer payloads ranging from around 1,100kg to over 1,500kg. As 3.5-tonne vans, they are designed to maximise carrying capacity while remaining legal to drive on a standard UK Category B car licence.

Since the formation of Stellantis in 2021, the Vauxhall Movano moved away from its Renault Master platform to join the Boxer/Relay/Ducato family. This means late-model Movanos are now physically identical to the other three, offering the same load space and cab layout for UK buyers.

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James Hartley

Founder

James Hartley founded Vans 4 Sale in 2020. He writes the marketplace buying guides and van articles for UK buyers, sellers and dealers.